Updated Install WLED binary (markdown)

Install-WLED-binary.md

@@ -8,10 +8,15 @@ ESP8266
 ```
 esptool.py write_flash 0x0 .\WLED_XXX.bin
 ```
-ESP32 (you will need to have a bootloader installed, you can flash the Arduino blink example to do that)
+ESP32 (you will need to have a bootloader installed)
 ```
 esptool.py write_flash 0x10000 .\WLED_XXX.bin
 ```
+If the ESP32 is new, you will need to flash the bootloader first. This is not required if you had an Arduino sketch running on it before. You can find the bootloader file in the assets for the 0.9.1 release.
+```
+esptool.py write_flash 0x0 .\esp32_bootloader.bin
+```
+When esptool.py says `Connecting...`, some ESP32 boards require you to hold the boot button (to the right of the USB port for a few seconds)  
 - If you experience issues, run this command before trying `write_flash` again (Note: this will erase all settings stored on the ESP!)
 ```
 esptool.py erase_flash
@@ -19,7 +24,9 @@ esptool.py erase_flash
 
 ### Flashing method 2: ESP Home Flasher tool
 
-This is recommended by some users as easier to use than esptool.
+This is a GUI-based tool recommended by some users as easier to use than esptool.
+For some ESP32 boards, you might have to press some buttons after uploading:
+> Hold both buttons down, plug it in, start flashing, then when is tries to detect, let go of the button to the left of the USB as you look at it, then when it detects the board type, let go of the other button.
 
 ### Flashing method 3: OTA update
 
@@ -41,5 +48,5 @@ Binary Name | For devices
 | WLED_0.x.x_ESP8266_apa102.bin | Custom build for 4Mb flash ESP8266 and APA102 LEDs (clock pin GPIO0, data GPIO2).
 | WLED_0.x.x_ESP8266_ws2801.bin | Custom build for 4Mb flash ESP8266 and WS2801 LEDs (clock pin GPIO0, data GPIO2).
 | WLED_0.x.x_ESP32_ledpinY.bin | Custom build for ESP32 and WS2812b. LED pin is changed (default is GPIO2). LED pin 16 is useful for the QuinLed Dig Uno board. |
-| esp32_bootloader.bin | Not a WLED release. Can be flashed to a brand new ESP32 before flashing the WLED binary itself. |
+| esp32_bootloader.bin | Not a WLED release. To be flashed to a brand new ESP32 before flashing the WLED binary itself. |